47-732 25 mm Dia. L-BAL35 Precision Aspheric Lens; EFL=37.5mm; NA=0.33 Uncoated
- Type
- Lens
- Subtype
- Aspheric Lens
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- 37.5 mm
- BFL
- 33.72 mm
- R1
- 22.09 mm
- R2
Material
- Name
- L-BAL35
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5891276536746055
- λ
- 587.6 nm
- B1
- 1.1626263
- C1
- 0.0125957437 μm2
- B2
- 0.325661051
- C2
- -0.0032691105 μm2
- B3
- 1.35132486
- C3
- 119.214596 μm2
47-732 25 mm Dia. L-BAL35 Precision Aspheric Lens; EFL=37.5mm; NA=0.33 Uncoated
The 47-732 is a high-precision aspheric lens, manufactured by Edmund Optics, with a catalog number 47-732. This lens is designed for use with a wavelength of 587.6 nm and features a base shape of a circle. The lens is made from L-BAL35, a material identified by the ID "l-bal35 ohara".
The lens has a diameter of 25 mm and a thickness at the edge of 2.3 mm. The effective focal length (EFL) of this lens is 37.5 mm, and it has a numerical aperture (NA) of 0.33. The lens is uncoated, which means it does not have any additional layers to enhance its optical properties.
The lens's geometry is defined by several parameters. The inner radius is 0, and the outer radius is also 0. The thickness at the center of the lens is 6 mm. The lens's first radius of curvature (r1) is 22.092, and the second radius of curvature (r2) is 0. The back focal length (BFL) is 33.72 mm.
The lens's shape is aspheric, which means it has a surface profile that deviates from a simple sphere. This design allows for superior optical performance compared to traditional spherical lenses, particularly in terms of reducing spherical aberration.
